Measure the opening or bore you need to fit the tube into and select the OD that matches. All pieces in this listing are 500mm (≈19.7") long. If you need a shorter piece, brass cuts cleanly with a hacksaw or pipe cutter. For quick reference: 25mm ≈ 1", 50mm ≈ 2".

All tubes in this listing have a uniform 3mm wall thickness. A 3mm wall generally provides good rigidity for structural, decorative, and light-duty fluid-transfer applications. For high-pressure hydraulic lines, consult a pressure rating chart for the specific OD you select.

Brass is naturally corrosion-resistant and performs well in humid or mildly wet environments. It is not recommended for prolonged submersion in salt water without additional protective coating. For outdoor decorative use, a clear lacquer finish is typically applied to slow natural patina development.

These are plain, unthreaded hollow round tubes. They are generally compatible with standard compression fittings, push-fit connectors, or soldered joints sized to match the OD you select. Always verify the fitting's bore specification against the tube OD before ordering.

Brass machines and cuts easily. A standard pipe cutter, hacksaw with a fine-tooth blade, or a lathe all work well. Deburr cut edges with a round file or deburring tool before assembly. Brass is also solderable and can be brazed for permanent joints.

Because wall thickness is a fixed 3mm, the ID = OD − 6mm. For example: OD 10mm → ID 4mm; OD 25mm → ID 19mm; OD 50mm → ID 44mm. All OD/ID pairs are listed in the variant selector above.

These tubes are made from solid brass (copper-zinc alloy), not brass-plated steel. Solid brass offers consistent machinability, solderability, and corrosion resistance throughout the full wall thickness — cut edges look and behave the same as the outer surface.